Solar Powered Mole Repeller Gopher Chaser (Pack of 2) Our Solar Powered Ultrasonic Mole Gopher Rodent Chaser Repeller is an environmentally safe and sound means for ridding your yard of annoying moles, gophers, and other ground rodents. Powered by solar power and a rechargeable battery, it repels these pesky pests and chases them away by sending ultrasonic vibrations through the ground. The ultrasonic vibrations make moles, gophers, and other rodents, believe they are in danger, and drives them from the area.